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Finding the Fourth Proportional to 268,406.50, 370,405.65 and 147,552.88

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Solution

The fourth proportional to 268,406.50, 370,405.65 and 147,552.88 is: 203,625.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,406.50 : 370,405.65 = 147,552.88 : x
  2. Step 2: Convert to fraction form
    268,406.50/370,405.65 = 147,552.88/x
  3. Step 3: Cross multiply
    268,406.50x = 370,405.65 × 147,552.88
  4. Step 4: Simplify right side
    268,406.50x = 54,654,420,425.77
  5. Step 5: Solve for x
    x = 54,654,420,425.77/268,406.50
  6. Step 6: Final answer
    x = 203,625.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.